CVE-2026-27976: Zed

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

Zed, a code editor, has an extension installer allows tar/gzip downloads. Prior to version 0.224.4, the tar extractor (`async_tar::Archive::unpack`) creates symlinks from the archive without validation, and the path guard (`writeable_path_from_extension`) only performs lexical prefix checks without resolving symlinks. An attacker can ship a tar that first creates a symlink inside the extension workdir pointing outside (e.g., `escape -> /`), then writes files through the symlink, causing writes to arbitrary host paths. This escapes the extension sandbox and enables code execution. Version 0.224.4 patches the issue.

Affected products

• Zed Zed: before 0.224.4 (fixed in 0.224.4)

Published 2026-02-26. Last modified 2026-06-17.